Battery pack and method for charging battery pack
a battery pack and battery pack technology, applied in secondary cells, battery service/maintenance, instruments, etc., can solve the problems of inability to charge or discharge cells uniformly, charge deviation or discharging deviation, and take a long time, so as to reduce inter-cell deviation and facilitate the replacement of bad cells
Inactive Publication Date: 2013-03-21
JUNG EUN EY
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- Description
- Claims
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Benefits of technology
The present invention is about a battery pack that is made up of connected cell modules. These modules can be easily replaced, which means that a bad cell can be easily replaced. The battery management system and the cell module monitor the state of the cells and communicate with each other. The cell module charges its own battery cell using a cell charger included in the module, which helps to reduce inter-cell deviation when charging or discharging. As a result, the battery pack is fully charged quickly.
Problems solved by technology
In this instance, the cells may fail to be uniformly charged or discharged and charging deviation or discharging deviation may occur.
The battery pack performs a cell balancing process so as to correct the deviation, which takes much time and increases the time for charging the battery pack.
Method used
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[0029]In the following detailed description, only certain exemplary embodiments have been shown and described, simply by way of illustration. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the inventive concept. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive. Like reference numerals designate like elements throughout the specification.
[0030]Throughout the specification, unless explicitly described to the contrary, the word “comprise” and variations such as “comprises” or “comprising” will be understood to imply the inclusion of stated elements but not the exclusion of any other elements.
[0031]A battery pack and a method for charging a battery pack according to exemplary embodiments will now be described with reference to accompanying drawings.
[0032]FIG. 1 shows a block diagram of a battery pack according to an ...
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Disclosed is a battery pack including: a plurality of cell modules including a plurality of battery cells; and a battery management system for transmitting a control signal on charging to at least one of the plurality of cell modules based on state information of a battery cell transmitted by the cell modules, and controlling a current supplied to the cell modules by an external charger based on the state information, wherein the cell modules are charged to a predetermined capacity of the battery cell in connection with the external charger, and are charged to full capacity of the battery cell individually according to the control signal so the battery pack is fully charged very quickly without a cell balancing process.
Description
BACKGROUND[0001](a) Field[0002]The present invention relates to a battery pack and a method for charging a battery pack.[0003](b) Description of the Related Art[0004]Electronic devices such as laptops or mobile phones and vehicles receive energy from batteries. Such batteries can be manufactured as a battery pack including battery cells and various circuits. Regarding the battery pack, the battery cells are charged by an external charger and the battery pack is repeatedly discharged to supply voltage and current to external loads such as electronic devices or vehicles.[0005]In the conventional battery packs, the battery cells are coupled in series and are charged by using an external charger. In this instance, the cells may fail to be uniformly charged or discharged and charging deviation or discharging deviation may occur. The battery pack performs a cell balancing process so as to correct the deviation, which takes much time and increases the time for charging the battery pack.[00...
Claims
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IPC IPC(8): H02J7/00
CPCH01M10/425H01M10/441H01M10/482H02J7/0057H01M2220/30H01M10/5004H01M10/5012H01M10/502H01M10/443H01M10/63H01M10/623H01M10/613H02J7/0069Y02E60/10H01M10/44G01R31/36H01M50/204H01M50/258
Inventor JUNG, EUN-EY
Owner JUNG EUN EY